Explore the vast journey from Earth to the farthest reaches of our observable universe, visualizing distances from the Moon ...

Mysterious blasts of radio waves from across the universe called fast radio bursts help astronomers catalog matter. ESO/M. Kornmesser, CC BY-SA If you look across space with a telescope, you’ll see ...

According to the Big Bang theory, normal matter composed of protons, neutrons, and electrons should account for roughly 5% of ...

Scientists are relatively certain that the observable universe is relatively flat, but in terms of the cosmos’s global topography, uncertainty reigns. A new study from an international scientific ...

Is the universe infinite? It's one of the most profound questions we can ask, and here's the short answer: We don't know. While we have learned a great deal about the universe, a portion of the cosmos ...